Operation and Service Manual Serial Numbers After H58642

HCD700R/N, HMD700R/N Ice Machines

Following installation, please forward this manualto the appropriate operations person.

Operation and Service ManualSerial Numbers After H58642

Order parts onlinewww.follettice.com

801 Church Lane • Easton, PA 18040, USAToll free (877) 612-50861 • +1 (610) 252-7301www.follettice.com 01012715R07

2 Horizon HCD700R/N, HMD700R/N Ice Machines

Horizon HCD700R/N, HMD700R/N Ice Machines 3

Welcome to Follett Corporation .................................................................................................................................. 4Specifications .............................................................................................................................................................. 5Operation ....................................................................................................................................................................... 7

Cleaning, weekly exterior care .............................................................................................................................. 7Cleaning, semi-annual evaporator cleaning .......................................................................................................... 7

Service ......................................................................................................................................................................... 12Ice machine operation ......................................................................................................................................... 12Water system....................................................................................................................................................... 13Electrical system ................................................................................................................................................. 14

Normal control board operation ................................................................................................................... 14Test points .................................................................................................................................................... 15Error faults ................................................................................................................................................... 15Hard errors ................................................................................................................................................... 15Soft errors .................................................................................................................................................... 15Relay output indication ................................................................................................................................. 15Compressor/refrigerant solenoid output ....................................................................................................... 15Wiring diagram, evaporator unit ................................................................................................................... 16Wiring diagram, condenser unit ................................................................................................................... 17Gearmotor data ............................................................................................................................................ 17

Mechanical system .............................................................................................................................................. 18Evaporator disassembly ............................................................................................................................... 18Evaporator reassembly ................................................................................................................................ 20

Refrigeration system ........................................................................................................................................... 23Condenser unit operation ............................................................................................................................ 23Refrigerant pressure data ............................................................................................................................ 23Refrigerant charges ..................................................................................................................................... 23Refrigeration system diagram ...................................................................................................................... 24Refrigerant replacement requirements ........................................................................................................ 25Evacuation ................................................................................................................................................... 25Ambients (evaporator unit) ........................................................................................................................... 25Ice capacity test ........................................................................................................................................... 25

Bin full detection system ..................................................................................................................................... 26Troubleshooting ................................................................................................................................................... 27Replacement parts .............................................................................................................................................. 30

Table of contents


Welcome to FollettFollett equipment enjoys a well-deserved reputation for excellent performance, long-term reliability and outstanding after-the-sale support. To ensure that this equipment delivers the same degree of service, we ask that you review the installation manual (provided as a separate document) before beginning to install the unit. Our instructions are designed to help you achieve a trouble-free installation. Should you have any questions or require technical help at any time, please call our technical service group at (877) 612-5086 or +1 (610) 252-7301.

Before you beginAfter uncrating and removing all packing material, inspect the equipment for concealed shipping damage. If damage is found, notify the shipper immediately and contact Follett Corporation so that we can help in the filing of a claim, if necessary.

Check your paperwork to determine which model you have. Follett model numbers are designed to provide information about the type and capacity of Follett equipment. Following is an explanation of the different model numbers in the 700 series.

A V SC 700HC

ConfigurationApplication

S RIDE®

(RIDE remote ice delivery equipment)

T Top-mount

400 up to 454 lbs (206kg)700 up to 750 lbs (340kg)1000 up to 1036 lbs (471kg)1400 up to 1450 lbs (658kg)1650 up to 1580 lbs (717kg)

V Vision™H Harmony™B Ice storage

binJ Drop-inM Ice Manager™ diverter valve system

CondenserSeriesVoltageMachine

C 208-230/60/1 (icemaking head) Self-contained only.D 115/60/1 (icemaking head) Self-contained and remote. If remote unit, high side is 208-230/60/1.

E 230/50/1 (icemaking head) Self-contained only.F 115/60/1 (icemaking head) Remote only. High side is 208-230/60/3.

MC Maestro™ Chewblet (400 Series)HC Horizon Chewblet (1000, 1400, 1650 Series)HM Horizon Micro Chewblet

A Air-cooled, self-containedW Water-cooled,

self-containedR Air-cooled, remote

condensing unitN Air-cooled, no condensing

unit for connection to parallel rack

system

Chewblet® Ice Machine Model Number Configurations

CAUTION § Outdoor installation of low side is not recommended and will void warranty.

§ Moving parts. Do not operate with front cover removed.

§ Hot parts. Do not operate with cover removed.

§ To reduce risk of shock, disconnect power before servicing.

§ To prevent circuit breaker overload, wait 15 minutes before restarting this unit. This allows the compressor to equalize and the evaporator to thaw.

§ Most ice machine cleaners contain citric or phosphoric acid, which can cause skin irritation. Read caution label on product and follow instructions carefully.

§ Ice is slippery. Maintain counters and floors around dispenser in a clean and ice-free condition.

§ Ice is food. Follow recommended cleaning instructions to maintain cleanliness of delivered ice.


SpecificationsElectrical

Separate circuit and equipment ground required.

Evaporator unitStandard electrical: 115/60/1 Maximum fuse: 15A Amperage: 6A

Condensing unitSingle-Phase

Electrical 208-230V, 60Hz

Maximum Circuit HVACR breaker size 15A

Minimum Circuit Ampacity 10.7A

Evaporator plumbing § 3/8" OD push-in water inlet

§ 3/4" MPT

§ 3/4" vented drain line must slope a minimum of 1/4" per foot (6 mm per 30.4 cm run).

§ Drain to be hard piped and insulated.

§ Water shut-off recommended within 10 feet (3 m).

§ Follett recommends installation of Follett water filter system (part# 00130286) in ice machine inlet water line.

AmbientEvaporator unitAir temperature 100 F/38 C max. 50 F/10 C min. Water temperature 90 F/32 C max. 45 F/7 C min. Water pressure 70 psi max. (483 kPa) 10 psi min. (69 kPa)

Condenser unitAir temperature 120 F/49 C max. –20F/–29C min.

Refrigeration § 3/8" liquid line

§ 5/8" suction line

Note: Rack system installations require a capacity of 6,000 BTU/hr at 0 F (–18 C) evaporator temperature. Evaporator pressure regulator (not supplied) is required.

WeightEvaporator unit: 125 lbs (57 kg)Condensing unit: 225 lbs (102 kg)

Ice production

FC50106016702180279032

6016

747339714324671304649294600272

7021

678308673305643292609276583264

8027

644292618280589267561254535243

9032

586266559254528239506230499226

10038

565256529240512232478217441200

lbskglbskglbskglbskglbskgIn

let W

ater

Tem

pera

ture

F/C

Ambient Air Temperature F/C

Air-cooled ice machine capacity/24 hrs.


Dimensions and clearancesEntire front of ice machine must be clear of obstructions/connections to allow removal.

§ 1" (26 mm) clearance above ice machine for service.

§ 1" (26 mm) minimum clearance on sides.

ICE TRANSPORT HOSE CONNECTION

3/4" MPT DRAIN

3/8" OD PUSH-IN WATER INLET

1.75"(44.5 mm) MIN.

NEMA 5-15PRIGHT ANGLE 5/8" SUCTION LINE

3/8" LIQUID LINE

Front View Side View Back View

Single-Phase Condensing Unit

18.23" (46.3 cm)

22.46" (57 cm)

2.56" (65 mm)

9.00" (22.9 cm)

3.29" (84 mm)

1.81" (46 mm)

2.88" (73 mm)

36.25" (92.1 cm) 25.50" (64.8 cm)

26.08"(66.3 cm)

22.44" (57 cm)

21.25"(54 cm)


OperationCleaning and preventive maintenance (all models)Note: Do not use bleach to sanitize or clean the ice machine.

Preventive maintenancePeriodic cleaning of Follett’s ice machine system is required to ensure peak performance and delivery of clean, sanitary ice. The recommended cleaning procedures that follow should be performed at least as frequently as recommended, and more often if environmental conditions dictate.

Cleaning of the condenser can usually be performed by facility personnel. Cleaning of the ice machine system, in most cases, should be performed by your facility’s maintenance staff or a Follett authorized service agent. Regardless of who performs the cleaning, it is the operator’s responsibility to see that this cleaning is performed according to the schedule below. Service problems resulting from lack of preventive maintenance will not be covered under the Follett warranty.

Weekly exterior careThe exterior may be cleaned with a stainless cleaner such as 3M Stainless Steel Cleaner & Polish or equivalent.

Monthly condenser cleaning (air-cooled ice machine only)1. Use a vacuum cleaner or stiff brush to carefully clean condenser coils of air-cooled ice machines to ensure

optimal performance.

2. When reinstalling counter panels in front of remote ice machines, be sure that ventilation louvers line up with condenser air duct.

Semi-annual evaporator cleaning (every 6 months)

WARNING § Wear rubber gloves and safety goggles (and/or face shield) when handling ice machine cleaner or sanitizer.

CAUTION § Use only Follett approved SafeCLEAN™ Cleaner (part #00132001) and NU-CALGON IMS-II or IMS-III

SANITIZER.

§ Do not mix Cleaner and Sanitizer solutions together.

§ DO NOT USE BLEACH.

§ It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling.

§ Read and understand all labels printed on packaging before use.

Note: Complete procedure for cleaning an sanitizing MUST be followed. Ice must be collected for 10 minutes before putting ice machine back into service.

Fig. 1

1. To clean – Remove cover. Press the CLEAN button. The machine will drain. Wait for the LO WATER light to come on (Fig. 1).

LO WATER


Fig. 2

2. Mix 1 gallon (3.8L) 120 F (49 C) water and 7 ounces (198g) (one 7 ounce packet of Follett SafeCLEAN ice machine cleaner, part# 00132001). Locate cleaning cup. Fill until CLEANER FULL light comes on (Fig. 2). Note: Do not use bleach to sanitize or clean the ice machine.

CLEANERFULL

Fig. 3

3. Replace cover on cleaning cup. Wait until machine restarts. Machine will clean, then flush 3 times in approximately 15 minutes (Fig. 3).

15

Fig. 4

4. To sanitize – Press CLEAN button. The machine will drain. Wait for LO WATER light to come on (Fig. 4).

LO WATER


Fig. 5

5. Mix 1 gallon 120 F (49 C) water and 1.6 ounces (48ml) NU-CALGON IMS-II or IMS-III SANITIZER. Fill until CLEANER FULL light comes on (Fig. 5). Place one Sani-Sponge™ in remaining sanitizing solution and retain for Step 9.

Note: Do not use bleach to sanitize or clean the ice machine.

CLEANERFULL

Fig. 6

6. Replace cover on cleaning cup. Wait until machine restarts. Machine will clean, then flush 3 times in approximately 15 minutes (Fig. 3).

15

Fig. 7

7. Disconnect coupling as shown (Fig. 7).

Note: Steps 8-11 must be completed before machine flushes and starts producing ice.


Fig. 8

8. Using disposable food service grade gloves, insert dry Sani-Sponge™ (kit part# 00132068). Next, insert Sani-Sponge soaked in Nu-Calgon IMS-II or IMS-III sanitizer solution (from Step 5). Push both Sani-Sponges down ice transport tube with supplied pusher tube (Fig. 8).

1

2

3

16"(407mm)

Fig. 9

9. Remove and discard 16" (407mm) pusher tube (Fig. 9).


Fig. 10

10. Reconnect coupling. When sanitizing cycle ends, machine will start producing ice. Press power switch ON. Ice pushes Sani-Sponges through tube (Fig. 10).

Fig. 11

11. Place a sanitary (2 gallon or larger) container in bin or dispenser to collect Sani-Sponges and ice for 10 minutes. Collect 5.5 lbs (3kg) of ice from unit. Discard ice and Sani-Sponges (Fig. 11).


ServiceIce machine operation (all models)

Follett’s ice machine consists of five distinct functional systems covered in detail as follows:

§ Water system

§ Electrical control system

§ Mechanical assembly

§ Refrigeration system

§ Bin full

The Horizon ice machine overviewThe Follett Horizon ice machine uses a horizontal, cylindrical evaporator to freeze water on its inner surface. The refrigeration cycle is continuous; there is no batch cycle. The evaporator is flooded with water and the level is controlled by sensors in a reservoir. A rotating auger (13 RPM) continuously scrapes ice from the inner wall of the evaporator. The auger moves harvested ice through the evaporator into an ice extrusion canal. The ice is forced through a restrictive nozzle that squeezes out the water and creates the Chewblet. The continuous extrusion process pushes the Chewblets through a transport tube into a dispenser or bin.

A solid state PC board controls and monitors the functionality of the ice machine. In addition to sequencing electrical components, the board monitors various operational parameters. A full complement of indicator lights allows visual status of the machine's operation. Additionally, the PC board controls the self-flushing feature of the ice machine. The evaporator water is periodically drained and replenished to remove minerals and sediment.

A unique “bin full” detection system is incorporated in the Horizon ice machine. A switch located at the ice discharge port of the machine detects the position of the transport tube. When the bin fills up with ice, the transport tube moves out of the normal running position, and the switch turns the ice maker off. A domed housing at the end of the transport tube contains the ice extrusion loads during shut down.

Ice Transport Tube

CompressionNozzle

Auger

Water Inlet

Harvest system diagram


Water systemThe water level in the evaporator is controlled by a feed solenoid and level detecting sensors. Referencing the diagram below, water sensing rods extend down into the reservoir at the end of the evaporator assembly. The system works via electrical conductivity as follows:

One of the longest probes is a common. When water is between any of the other probes and the common, the PC board will sense the activation. During normal operation, the water level rises and falls between the Normal High and Normal Low sensors. As water is consumed to make ice, the level will fall until the Normal Low sensor is exposed, triggering the water feed solenoid on. Water will fill until the Normal High sensor is activated.

Note: The potable water dissolved solids content must be greater than 10 ppm for the water control system to function properly. If using reverse osmosis water filtration system, ensure T.D.S level is greater than 10 ppm.

NORMALOPERATING

RANGE NO

RM

AL

HI

NO

RM

AL

LO

CO

MM

ON

ALA

RM

LO

Water system diagram

Water level diagram


Electrical system

ATTENTION!To prevent circuit breaker overload, wait 15 minutes before restarting this unit.

Normal control board operationThe PC board indicator lights provide all the information necessary to determine the machine's status. Green indicator lights generally represent “go” or normal operation; Yellow indicators represent normal off conditions; Red indicators generally represent alarm conditions, some of which will lock the machine off.

A flashing green light labeled POWER indicates power to the machine. All other normal operation status indicators are covered as follows:

Ice machine disposition Operating conditions

FLASHINGON or OFFLegend: OFFON

1. Ice machine is making ice.

.

1. Normal running.

2. Ice machine is not making ice. 2. Normal time delay. When the bin fills with ice, the LOW BIN light goes out and the refrigeration and auger drive systems immediately shut down. (Note: The fan motor will continue to run for 10 minutes to cool condenser) The TIME DELAY light comes on, initiating the time delay period. When the time delay expires, the machine will restart provided that the LOW BIN light is on.

Note: The ice machine has a 15-minute startup delay when power is applied to prevent circuit overload.

DIP Switch Settings


Error faults: The Horizon PC board monitors various operating parameters including high pressure, auger gearmotor amperage limits, clogged drain, and low water alarm conditions. There are two types of errors namely “hard” or “soft”. A hard error is one that shuts the machine off and will not allow restart until the reset button is pressed. Even cycling power will not reset a hard error. A soft error can either be automatically reset should the condition rectify, or if power is cycled. Should an error occur, consult the troubleshooting guide in this manual or a Follett service technician.

Soft errors:HI AMPS: The PC board monitors the amperage of the auger motor. Should the gear motor experience current draw above the allowable limit, the machine will shut down and the TIME DELAY and HI AMP will be illuminated. After the time delay the machine will restart and the TIME DELAY and HI AMP will clear.

LO WATER: During operation, the water level cycles between the normal low and normal high sensors. Should the water be shut off to a running machine, a soft error will occur. The error sequence is as follows: During operation, the water level falls to the normal low sensor, and when it does the water feed solenoid is energized. If water is not detected at the normal low sensor within 10 seconds, a soft error will occur. The machine will shut down, but the water feed solenoid will remain energized. Should water return, it will fill to the normal low sensor and the machine will resume normal operation. The error will clear automatically.

HI PRESSURE: Should the refrigeration pressure rise above 425 psi, the machine will shut down and the TIME DELAY and HIGH PRESSURE will be illuminated. After the time delay, and if the pressure has fallen back below the reset point of 295 psi, the machine will restart and the TIME DELAY and HIGH PRESSURE will clear.

Hard error:DRAIN CLOG: The drain clog sensor, located in the chassis, underneath the rear drain pan, will detect the presence of water just below the top edge of the pan. If water does not properly flow out of the drain pan it will overflow into the chassis and rise to the sensor (especially during a self-flushing purge cycle). Pressing the reset button will restart the ice machine.

Relay output indication:Each relay on the board has an indicator light associated with its output. For example, when the relay for the water feed solenoid is energized, the adjacent indicator light glows green.

Comp/Sol output:The output for the liquid line solenoid valve is labeled COMP/SOL.

Flushing logicFlush on fly: For every one (1) hour of ice making time, the machine will open the drain valve for a duration of 60 seconds. While the drain valve is open, the machine will continue to make ice and the water feed valve will cycle to maintain water level.

Off cycle: At the completion of off-cycle time delay, the machine checks for a cumulative one (1) hour of ice making time since the last off-cycle flush. If the cumulative ice making time exceeds one (1) hour, the machine will open the drain valve for 60 seconds to drain the evaporator in its entirety. It will then refill with water and begin making ice. If the ice making time is less than 1 hour, the machine will start and begin making ice without draining the evaporator.


Wiring diagram, evaporator unit

#3

GR

N-Y

EL

POW

ERLO

W B

INM

AKIN

G IC

ESL

EEP

CYCL

ETI

ME

DELA

YLO

W W

ATER

MAI

NT/C

LEAN

SERV

ICE

HI A

MPS

DRAI

N CL

OG

CLEA

NER

FULL

L1G

ND

L2/N

S1

#12

BLA

CK

#28

BLA

CK

#29

WH

ITE

#30

WH

ITE

25

14

FAIL

SA

FE

/EV

AP

W

ATE

R S

OLE

NO

ID

VA

LVE

#22

W

HIT

E

#15

B

LAC

K

#16

WH

ITE

DR

AIN

VA

LVE

#18

W

HIT

E

#17

B

LAC

K

#31

BLA

CK

AU

GE

R #23

WH

ITE

or

GR

AY

PIN

K

BIN

#26

B

LAC

K

#24

B

LAC

K

#25

BLU

E#2

7G

RN

-YE

L

WAT

ER L

EVEL

SP1

7BI

NP1

2CL

EAN

SAFE

P11

DR

AIN

CLO

GS

EN

SO

R

RE

SE

RV

OIR

WAT

ER

SE

NS

OR

AU

GE

R

CA

P

MA

INT.

CLE

AN

G

RN

-YE

L

BLU

E o

r

BLA

CK

BLA

CK

YE

LLO

WO

RA

NG

ER

ED

BLA

CK

VIO

LET

AB

CD

RE

FR

IG

MOD

EL SE

LECT

SERIA

L COM

M

COMPRESSOR

AUGE

R

WATE

R LEV

ELS

HI PR

S

BINRS

485

RS48

5 UI

CURR

ENT S

ENS

RESE

TPROG

RAM

P5

ICE A

UXWA

TER A

UX

D9D8D7D6D5D4

D37

D3D2

D18

D16

D15

D14

D13

D12

D11

D10D1

T1

P18

P11

P13

P17 P12

P14P1

6P1

5

P4

T2

S1

S2

K1

P7

P8

P10

K312

6 5

P9L1L1 L1

NN

NN

NN

NN

NP2

P1

P21

P20

P19

P3P6 P22

D19 D22 D21 D20

D17D48

Gearmotor data (Brother) Resistance of windingsGearmotor current 1.1A (nominal) 115 vac gearmotor (Brother): white to black 16Ω white to blue 16Ω blue to black 32ΩLocked rotor amps 2A


POTENTIAL RELAYsee note B

5

2

FAN 2

L1

CRANK CASEHEATER

COMPRESSORTERMINAL

C

GRD

L1 T1

BLACK

COMPRESSORCONTACTOR T1

L1

T2

L2

L3

L2

T3

T2

COMPRESSOR CONTACTOR COIL

see note A

TERMINAL BOARD

P1

HP LP

T3

L3

STARTCAPACITOR

WITH BLEEDER RESISTOR

4

6

1

L2 L3 T3T1 F1 F2

AFC

FAN 1

S R RED

YELLOWREDBLACK

YELLOW

RUNCAPACITOR

Single-phase condensing unit wiring diagram


Mechanical System Fig. 12

Evaporator disassembly1. Press CLEAN button to purge evaporator. Turn power

OFF when LO WATER lights.

2. Unscrew and disconnect transport tube from louvered docking assembly.

Fig. 13

3. Unplug gear motor.

Fig. 14

4. Remove shuttle housing:

§ Remove vent tube (Fig. 14.1). § Disconnect shuttle housing switch connections

(Fig. 14.2). § Remove two screws and lift shuttle housing (Fig. 14.3). § Remove stream divider (Fig. 14.4).

1

2

3

1

3

4

2


Fig. 15

5. Remove gear motor:

§ Remove gear motor insulation (Fig. 15.1). § Remove 1/4-20 screw, retainer, and spacer (Fig. 15.2). § Remove two 1/2" bolts (Fig. 15.3). § Pull gear motor from auger (Fig. 15.4). § Remove main housing insulation (Fig. 15.5).

6. Remove all traces of petro-gel from auger shaft.

1

2

3

3

5

4

Fig. 16

7. Remove main housing:

§ Use an allen wrench to remove 3/16" allen screws (3) (Fig. 16.1).

§ Remove shaft insulation (Fig. 16.2). § Remove main housing (Fig. 16.3).

1 2

3

1

1

Fig. 17

8. Remove and discard mating ring and seal (Fig. 17.1).

9. Carefully remove auger (Fig. 17.2).

WARNING!Use caution when removing auger. The auger is very sharp - handle with care to avoid personal injury.

1

1

2


Fig. 18

10. Press the lever on the back of the reservoir (Fig. 18.1) to release and remove the solenoid (Fig. 18.2).

1

2

Fig. 19

11. Remove three screws to remove the reservoir insulation (Fig. 19).

Fig. 20

12. Remove three screws to remove the reservoir (Fig. 20).


Fig. 21

13. To remove the rear bushing, place the auger into the evaporator and use it to gently tap and dislodge the rear bushing housing (Fig. 21).

Fig. 22

Evaporator reassembly 1. Remove and inspect O ring seal. Replace if

damaged in any way.

2. Place rear bushing into evaporator.

3. Install the three bolts: partially tighten each bolt, alternating bolts until the rear bushing is fully seated and properly aligned (Fig. 22).

4. When fully seated, remove the bolts.

Fig. 23

5. Install the reservoir with three bolts (Fig. 23).


Fig. 24

6. Install the reservoir insulation, tube clamp, and solenoid lever with three screws.

7. Install solenoid.

Fig. 25

1. Remove and inspect O ring seal. Replace if damaged in any way (Fig. 25.1).

2. Clean O ring groove. Lubricate O ring with petrol-gel and reinstall (Fig. 25.2).

1

2

Fig. 26

3. Use cardboard disc to press new mating ring into main housing (Fig. 26.1).

4. Lube the shaft with liquid soap in the area shown (Fig. 26.2) and slip on seal and spring (Fig. 26.3).

Note: Do not touch the sealing surfaces with bare hands. Contact with bare skin will cause premature seal failure.

5. Install auger (Fig. 26.4).

Cardboarddisc

Do NOTtouch!

1

3

42


Fig. 27

6. Install main housing:

§ Slide main housing onto auger shaft (Fig. 27.1). § Install main housing insulation (Fig. 27.2). § Use an allen wrench to install 3/16" allen screws (3)

(Fig. 27.3).

3 2

1

3

3

Fig. 28

7. Apply a coat of petrol-gel to the auger shaft.

8. Install gear motor:

§ Install main housing insulation (Fig. 28.1). § Slide gear motor onto the auger shaft (Fig. 28.2). § Install two 1/2" bolts (Fig. 28.3).

3

3

1

2

Fig. 29

9. Use screwdriver to orient auger shaft to align with motor shaft keyway (Fig. 29.1).

10. Install key into keyway (Fig. 29.2).

1

2

3

Fig. 30

11. Install spacer, ensure that key is captured in slot (Fig. 30.1)

1


Fig. 31

12. Insert screwdriver into groover of auger shaft and pry shaft outwards (Fig. 31.1).

13. Insert retainer into groove (Fig. 31.2), ensure that retainer is aligned with hole in spacer.

1

2

Fig. 32

14. Install screw and tighten (Fig. 32.1).

1

Fig. 33

15. Install gear motor insulation.


Fig. 34

16. Install shuttle housing:

§ Install stream divider (Fig. 34.1). § Place shuttle housing and install two screws (Fig. 34.2). § Plug in shuttle housing connections (Fig. 34.3). § Connect vent tube (Fig. 34.4).

3

2

1 NOCONNECT

BLACKORANGE

NOCONNECT

BLACKORANGE

4

2

1

3

Fig. 35

17. Plug in gear motor.

§ BROWN to BLUE

§ BLACK to BLACK

§ WHITE to GRAY

BROWN to BLUEBLACK to BLACKWHITE to GRAY

Fig. 36

18. Connect transport tube to louvered docking assembly.


Refrigeration systemCondenser unit operationThe condensing unit is weatherproof and equipped to operate in ambient temperatures from –2 0 F to 120 F (–29 C to 48.9 C). The condensing unit is controlled by a low pressure control, which works in concert with a refrigerant solenoid valve on the evaporator module. On start-up, the refrigerant solenoid valve opens and suction pressure rises above the “on” set point of the control. The compressor and fan turn on and the refrigeration system operates. Upon shut down, the refrigerant solenoid closes. The compressor will pump down the ice machine evaporator and suction line until the low “off” set point is reached, at which point the compressor and fan will turn off.

Low ambient operation: Reliable operation at low outdoor ambient temperature is achieved with a pumpdown cycle, a crankcase heater and a head pressure control valve. When the outdoor ambient falls, the condensing pressure falls. This causes the discharge pressure to fall as well. When the discharge pressure falls below the dome pressure, the valve modulates open to the discharge port which allows discharge gas to bypass the condenser. Mixing the discharge gas with the liquid creates a high pressure at the condenser outlet, reducing the flow and causing liquid to back up in the condenser. Flooding the condenser reduces the area available for condensing. This reduction in effective condenser surface area results in a rise in condensing pressure. During summer conditions, the discharge pressure is high, thus closing the discharge port of the valve. Hence, there is full liquid flow from the condenser to the receiver.

A check valve is installed in the liquid line between the receiver and the condenser to prevent liquid migration from the receiver to the condenser during the off cycle. The low pressure control will start the condensing unit anytime the low side pressure rises above the set point and pump the refrigerant out until the pressure falls to the set point. The crankcase heater, which is energized whenever the condensing unit has power, keeps the compressor oil warmer than the coldest location in the system. This minimizes off cycle refrigerant migration. If power to the condensing unit is interrupted after the system is charged, the compressor should not be started unless the crankcase heater has been energized for at least 24 hours immediately prior to compressor startup. However the compressor can safely be started during the refrigeration system charging process (without the warm-up period) once sufficient refrigerant is in the system to maintain a positive pressure on the suction side of the compressor.

Under normal ambient operating conditions the left side condenser fan motor, when viewing the outdoor condensing unit from the compressor side, is not energized; therefore, the fan will pinwheel. During hot summer days, at elevated temperatures, the left side condenser fan will be energized to maintain the BTU efficiency of the condensing unit.

For additional information, please reference Horizon ice machine installation instructions for remote condensing units.

Refrigerant pressure data

Air-cooled condensers (air) 60 F/16 C 70 F/21 C 80 F/27 C 90 F/32 C 100 F/38 C

Pressure (psig) discharge/suction 170/27 190/29 211/31 232/34 245/36

R404A ice machine refrigeraant charge specifications

Model Line Run Charge

700 0 – 50 ft (0 – 15.2m)

50 – 75 ft (15.2 – 22.9m)

75 – 100 ft (22.9 – 30.5m)

100 ft+ (30.5m+)

8 lbs (3.6kg)

9 lbs (4.1kg)

10 lbs (4.5kg)

Consult factory


Refrigeration system diagram

LOW SIDESERVICE VALVEW/ SERVICE PORT

HIGH SIDESERVICE VALVEW/ SERVICE PORT

EVAPORATOR UNITSIGHT GLASS

SOLENOID VALVE

CONDENSER

CONDENSER UNIT

HEAD CONTROL VALVECHECK VALVE

COMPRESSOR

LOW SIDESERVICE VALVE

W/ SERVICE PORT

LOW SIDE REFRIGERATIONLINE RUN

HIGH SIDE REFRIGERATIONLINE RUN

LOW PRESSURE VAPORLOW PRESSURE LIQUIDHIGH PRESSURE LIQUIDHIGH PRESSURE VAPOR

RECEIVER


LOW SIDESERVICE PORT

HIGH SIDESERVICE PORT

THERMOSTATICEXPANSION

VALVE

FILTER-DRIER

SIGHT GLASS


LOW SIDESERVICE VALVEW/ SERVICE PORT

FILTER

HEAT EXCHANGER


Refrigerant replacement requirements1. Non-contaminated refrigerant removed from any Follett refrigeration system can be recycled and returned to

the same system after completing repairs. Recycled refrigerant must be stored in a clean, approved storage container. If additional refrigerant is required, virgin or reclaimed refrigerant that meets ARI standard 700-88 must be used.

2. In the event of system contamination (for example, a compressor burn out, refrigerant leak, presence of non-condensibles or moisture), the system must be repaired, evacuated and recharged using virgin or reclaimed refrigerant that meets ARI standard 700-88.

3. Follett Corporation does not approve of recovered refrigerants. Improper refrigeration servicing procedures will void the factory warranty.

Evacuation Evacuate the system to a level of 500 microns. When the 500 micron level is reached, close valves and both manifold and shut down the vacuum pump. Allow the system to sit for approximately 20 minutes. During this period the system pressure should not rise. If the system pressure rises and stabilizes there is moisture in the system and further evacuation is needed. If the pressure continues to rise check the system for leaks.

Ambients (evaporator unit) Minimum MaximumAir temperature1 50 F/10 C 100 F/37.8 CWater temperature2 45 F/7 C 90 F/32.2 C1Ambient air temperature is measured at the air-cooled condenser coil inlet.2Ambient water temperature is measured in the ice machine float reservoir.

Ice capacity testIce machine production capacity can only be determined by weighing ice produced in a specific time period.

1. Replace all panels on ice machine.

2. Run ice machine for at least 15 minutes.

3. Weigh and record weight of container used to catch ice.

4. Catch ice for 15 or 20 minutes.

5. Weigh harvested ice and record total weight.

6. Subtract weight of container from total weight.

7. Convert fractions of pounds to decimal equivalents (ex. 6 lbs 8oz = 6.5 lbs).

8. Calculate production using following formula:

1440 min. x wt. of ice producedTotal test time in minutes = Production capacity/24 hr.

9. Calculated amount per 24 hours should be checked against rated capacity for same ambient and water temperatures in Ice Production Tables.


Running Off

Running Off

Shuttle flag and sensor

Shuttle actuator

“Bin full” detection systemThe Follett Horizon ice machine incorporates a unique “bin full” detection system that consists of the shuttle and actuator. The shuttle incorporates a flag and switch. Referencing the figure below, the normal running position of the flag is down, and the switch is closed. When the bin fills to the top and ice can no longer move through the tube, the machine will force the shuttle flag up, opening the switch and shutting the machine off. The shuttle actuator, located above the ice bin allows the ice to curl up within it when the bin is full. In this way, there are no loads generated that would tend to lift off the lid of the bin.


TroubleshootingPlease see “Service” section for a description of each function.

Ice machine disposition Possible causes Corrective action


1. Ice machine is in running condition but not making ice.

.

1. Defective compressor.2. Defective start relay.3. Defective start capacitor.4. Defective run capacitor.5. Defective main contactor.6. No output from PC board.7. Machine in Purge cycle.

1. Replace compressor.2. Replace start relay.3. Replace start capacitor.4. Replace run capacitor.5. Replace main contactor.6. Replace PC board.7. Check for Purge operation.

2. Machine in TIME DELAY without full bin.

1. Ice jamming due to improperly installed transport tube causing a false shuttle.

2. Shuttle stuck in up position.3. Damaged or improperly installed

thermostat (open).4. Transport tube backed-out of

coupling.

1. Correct transport tube routing. 2. Repair or replace shuttle

mechanism.3. Replace or reposition thermostat.4. Correct coupling installation.

3. Ice machine is not making ice. HI AMPS.

.

1. Mineral build-up on evaporator/auger causing ice to jam auger.

2. Damaged shuttle mechanism.3. Intermittent drive output from

PC board. Evaporator will freeze causing a HI AMPS error.

4. Gearmotor is unplugged.

1. Clean ice machine. Increase flushing frequency.

2. Replace or repair shuttle mechanism.

3. Replace PC board.4. Plug in gearmotor.

4. Ice machine is not making ice. Drain clog.

.

1. Drain hose kinked or plugged causing water to back up.

2. Improper floor drain routing/pitch causing water to back up.

3. High TDS levels and leaking drain solenoid may cause an errant drain clog.

4. No vent on external drain line.

1. Remove kink or blockage from drain hose.

2. Re-route floor drain.3. Clean area around drain sensor

and/or replace Drain solenoid valve.4. Add vent to drain line.


Ice machine disposition Possible causes Corrective action


5. Ice machine is making ice. Excessive water in bin or coming into bin from transport tube.

1. Failed water sensors. Processor assumes there is no water when there is water.

2. Blocked reservoir vent.3. Defective water feed solenoid

valve. Stuck in open position.

1. Clean or replace water probe assembly. Check wiring connections.

2. Clean or replace vent tubes.3. Replace water feed solenoid

valve.

6. Ice machine is not making ice. Lo water.

1. Water supply is insufficient.2. Low water pressure.3. Defective water feed solenoid

valve. Stuck in closed position.4. No water feed output from

PC board.

1. Restore water supply and check water filters. If evaporator was completely empty the reset button may have to be pressed to restart the ice machine.

2. Ice machine will eventually start when water reaches normal lo level.

3. Replace water feed solenoid valve.4. Replace PC board.

7. Service required. 1. 30,000 hour bushing check. 1. Call Follett technical service group at (877) 612-5086 or +1 (610) 252-7301.

ATTENTION!To prevent circuit breaker overload, wait 15 minutes before restarting this unit. This allows the compressor to equalize and the evaporator to thaw.


1

2

3

7

4

8

9

10

11

12

13

1415

16

17

17

17

18

19

12

20

2122

23

24

25

26

27

28

29

30

5

31

6

32

3432

34

33

33

6

4


Replacement partsEvaporator assembly


Reference # Description Part #

1 Tube, ice transport, molded 01006485

2 Shuttle assembly 01006253

3 Switch, shuttle 001006261

4 Compression nozzle 01048941

5 Chamber, expansion 01103589

6 Insulation (sold per foot) 204360

7 Auger hardware (includes screw, spacer, retainer) - S/N E03141 and after 01041474

7 Auger hardware (includes washer and 2 nuts) - before S/N E03141 01006493

8 Key 00974394

9 Bolt, gearmotor mounting (1) 00974352

10 Gearmotor, 115 V (includes capacitor) 01006212

11 Main housing 01006204

12 O ring 00974329

13 Seal, auger shaft 00969592

14 Cup, sanitizer 00130674

15 Gasket, sanitizer 00124032

16 Cap, sanitizer (includes gasket) 00130880

Not shown Tubing, water, 3/8" OD 502719

Not shown Tubing, water, 1/4" OD 502079

17 Retainer kit, evaporator 01006535

18 Solenoid, water feed (115 V) 00128116

19 Reservoir lid and sensors 01006295

20 Clip, water shut-off valve 502922

21 Clamp, cleaning cup 00983544

22 Valve, shut-off, water 502921

23 Auger (includes seal, key, and auger hardware) 01006196

24 Evaporator (includes (2) o-rings) 01006188

25 Rear bushing housing and bushing (includes (1) o-ring) 01006279

26 Reservoir assembly, water (includes lid and insulation) 01006287

27 Solenoid, purge (115 V) 00974279

28 Tube, vent 00991786

29 Tube, sanitizer 00991778

Not shown Insulation kit, evaporator/gear motor/reservoir 00974600

30 Kit, MicroChewblet 00997585

31 Extended expansion chamber assembly 01103357

32 O-ring, top 01053180

33 O-ring, bottom 00974337

34 Allen screw, 5x32 (each) 0105004



3

2

1

5

69

12

8

10

7

11

13

4

Low side assembly



1 Tubing, liquid line (includes insulation) 01021724

2 Tubing, suction line (includes insulation) 01021732

3 Sight glass 01018357

4 Electrical box support 00969925

5 Valve, expansion, thermal (includes 502830 and 00106534) 01021716

6 Insulation, TXV 502830

7 Valve, shut-off, liquid line 00107060

8 Valve, solenoid 00107052

9 Insulation, bulb, TXV 00106534

10 Valve, shut-off, suction line 00107078

11 Base, split system 01006303

12 Insulation, service valve 00168914

Not shown Cap, valve, shut-off, suction line 00991026

13 Sensors, chassis 01006378



Electrical box

1

2

3

4

5

6




1 Cover, electrical box, air/water-cooled 01021708

2 Board, control, 115 V (includes stand-offs) 01006428

3 Stand-offs (set of 8) 00130906

4 Switch, evaporator clean 00117036

5 Switch, ice machine power 208867

6 Cord, power, 115 V 00984278



1

11

2

2

13

10

12

45

7

8

12

1

11

10

29

45

6

7

8

2

6

3

3

RIDE model configuration

Top mount configuration

Integration kit – top-mount and RIDE remote ice delivery Order parts onlinewww.follettice.com



1 Shuttle actuator 00171322

2 Clamp 500377

3 Actuator elbow (includes 00167122 and 209100) 00171264

4 Screws 209100

5 Gasket 00167122

6 Actuator body 00171272

7 Gasket, coupling 00126532

8 Ring, locking (includes 00126532) 00171371

9 Ice transport tube, 10' (3m) 00171280

9 Ice transport tube, 20' (6m) 00171298

10 Insulation, transport tube 501176

Not shown Insulated polywire ice transport tube, per foot 00174896

11 Insulation, elbow 00168922

12 Insulation, actuator 00168930

13 Ice transport tube, top mount, 30" (762mm) 00171306

Not shown Integration kit, top mount 00171389

Not shown Integration kit, RIDE model (includes 10' (3m) of tube and insulation) 00171397

Not shown Extension-fill tube, 9" 00135723

Not shown Extension-fill tube, 4" 00153684

Not shown Diverter plate (single agitator Cornelius dispensers and left-hand dispense chute on dual-agitator Cornelius dispensers)

307277

Not shown Diverter plate (right-hand dispense chute on dual-agitator dispensers) 00996207

Not shown Follett SafeCLEAN ice machine cleaner (case of 24 x 7oz packets) 00132001

Not shown Sani-Sponge kit 00132068

Not shown Integration kit, Vision 00997171

Not shown High-capacity filter system 00978957

Not shown Primary filter (1) 00978965

Not shown Primary filter (6) 00978973

Not shown Pre-filter (1) 00130211

Not shown Pre-filter (12) 00954305

Not shown IMS-II or IMS-III sanitizer concentrate - 16 oz. 00979674



Skins assembly Order parts onlinewww.follettice.com

1

2

14

4

3

765

89

13

10

11

12



1 Front cover (solid front) 01091784

1 Front cover (with cutout for grille) 01006162

2 Tubing, water, 3/8" OD 502719

3 Fitting, water inlet 502924

4 Elbow, water inlet 502925

5 Coupling (includes O-ring) 00171207

6 O-ring 00144675

7 Bulkhead fitting 00171215

8 Nut 00145342

9 Hose clamp 500377

10 Plate, strain relief 00192070

11 Louvered docking assembly (includes water tubing, water inlet fitting, water inlet elbow, strain relief plate, bulkhead connector kit, and drain pan)

01006170

12 Screw 203460

13 Bulkhead connector kit 00171223

Not shown Gasket, front cover (inside), per foot (4 feet required) 00939058

Not shown Louver, intake/exhaust (13.75"x17.75"), per foot (6 feet required) 00978304

Not shown Gasket, air intake (front cover, outside) 00131532

14 Pan, drain 01006543

Not shown Grille, front 01006154



1

7

6

5

12

1415

164

17

13811

3

6

4 2

109

1383

Single-phase condensing unit Order parts onlinewww.follettice.com



1 Shroud 01018290

2 Condenser 01018324

3 Head pressure control valve 01021401

4 Condenser fan motor 01018266

5 Condenser fan guard 00123067

6 Receiver 01018332

7 Filter drier, liquid 01018340

8 Compressor 01021666

9 Service/shut-off valve, suction line 00107078

10 Service/shut-off valve, liquid line 00107060

11 Crankcase heater 01018373

Not shown Sight glass 01018357

12 Condenser fan blade 00173088

13 Filter drier, suction 00998245

Not shown Starting relay 01018225

14 Run capacitor 502837

15 Starting capacitor 01018241

16 Contactor 00155952

17 Low pressure control 01018316

Not shown High pressure switch 01018308

Not shown Fan cycling switch 01021393

Not shown Overload 01018217

Not shown Schrader valve 01021419

Not shown Suction valve, upstream suction filter 01021427

Not shown Suction valve, upstream compressor 01021435


01012715R07© Follett Corporation 12/15

801 Church Lane • Easton, PA 18040, USAToll free (877) 612-50861 • +1 (610) 252-7301www.follettice.com

Harmony, Ice Manager, SafeCLEAN, Sani-Sponge and Vision are trademarks of Follett Corporation Follett, Chewblet, and RIDE are registered trademarks of Follett Corporation, registered in the US.

Operation and Service Manual Serial Numbers After H58642

Documents

Transcript of Operation and Service Manual Serial Numbers After H58642